5 x 20mm Fuses
GMD Series,Time-Delay, Glass Tube
Description
• Time-delay, low breaking capacity
• Optional axial leads available
• 5 x 20mm physical size
• Nickel-plated brass endcap construction
• Designed to UL/CSA 248-14
Electrical Characteristics
Rated Current % of Amp Rating
Opening Time
100%
None
135%
60 minutes maximum
100mA - 4A
5 seconds minimum
200%
2 minutes maximum
Dimensions - mm
5.54mm
(±.20)
38.10mm
(±.38)
Agency Information
• UL Listed, Guide JDYX, File E19180
• UL Recognition Card (4A), Guide JDYX2, File E19180
• CSA Certified, Class 1422-01, File 53787
• PSE/JET, File 1641-31003-1001
Ordering
Specify product code
• Insert packaging code prefix before part number. E.g.
BK/GMD-250-R
Specify option code if desired
• For axial leads, insert “V” between catalog series and
amp rating. E.g. BK/GMD-V-250-R
21.10mm
(±.81)
(±
( 0.5)
5.2mm
(+0.1/-0.2)
0.65mm
(REF)
(±.38)
• With TR2 packaging code, lead wire length is 19.05mm
Specifications
Part Number
GMD-125-R
GMD-150-R
GMD-200-R
GMD-250-R
GMD-300-R
GMD-315-R
GMD-375-R
GMD-400-R
GMD-500-R
GMD-600-R
GMD-630-R
GMD-750-R
GMD-800-R
GMD-1-R
GMD-1.2-R
GMD-1.25-R
GMD-1.5-R
GMD-1.6-R
GMD-2-R
GMD-2.5-R
GMD-3-R
GMD-4-R
Voltage Interrupting Rating (amps)
Typical DC
Rating
at Rated Voltage (50Hz) Cold Resistance
Vac
(Ω)**
250 Vac
125 Vac
250
8.125
35
10,000
250
6.065
35
10,000
250
5.190
35
10,000
250
3.455
35
10,000
250
3.215
35
10,000
250
2.400
35
10,000
250
1.625
35
10,000
250
1.505
35
10,000
250
1.0645
35
10,000
250
0.948
35
10,000
250
0.629
35
10,000
250
0.4425
35
10,000
250
0.4475
35
10,000
250
0.3065
35
10,000
250
0.299
100
10,000
250
0.1995
100
10,000
250
0.158
100
10,000
250
0.124
100
10,000
250
0.107
100
10,000
250
0.0905
100
10,000
250
0.0655
100
10,000
250
0.048
200
10,000
Typical
Melting I
2
t
(amps)†
0.043
0.046
0.200
0.4
0.650
0.890
0.890
1.2
1.4
3.1
3.1
4.7
6.6
12
16
16
25
27
42
94
145
300
Typical
Voltage
Drop (mV)‡
1600
1200
1100
950
800
750
650
600
550
450
450
410
380
310
280
245
240
220
200
195
190
190
UL
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
UR
Agency Approvals
PSE
CSA
JET
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
* Interrupting ratings (Interrupting ratings for 125mA - 3A were measured at 70% - 80% power factor on AC. The interrupting ratings for 4A were measured at 100%
power factor on AC)
** Typical DC Cold Resistance (measured at <10% of rated current)
† Typical Melting I
2
t (I
2
t was measured at listed interrupting rating and rated voltage)
‡ Typical Voltage Drop (voltage drop was measured at 20°C ambient temperature at rated current)
0209
BU-SB08894
Page 1 of 2
Data Sheet 2019
Time-Current Curve
Packaging Code
Packaging Prefix
BK
BK1
TR2
Description
100 fuses packed into a cardboard carton
1,000 fuses packed into a poly bag
1,500 fuses packed into tape on a reel (19.05mm lead wire length)
Option Code
Option Code
V
Description
Axial leads - copper tinned wire with nickel plated brass endcaps
The only controlled copy of this Data Sheet is the electronic read-only version located on the Cooper Bussmann Network Drive. All other copies of this document are by definition uncontrolled. This bulletin is
intended to clearly present comprehensive product data and provide technical information that will help the end user with design applications. Cooper Bussmann reserves the right, without notice, to change
design or construction of any products and to discontinue or limit distribution of any products. Cooper Bussmann also reserves the right to change or update, without notice, any technical information contained
in this bulletin. Once a product has been selected, it should be tested by the user in all possible applications.
Life Support Policy: Cooper Bussmann does not authorize the use of any of its products for use in life support devices or systems without the express written approval of an officer of the Company. Life support
systems are devices which support or sustain life, and whose failure to perform, when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in
significant injury to the user.
© 2009 Cooper Bussmann
St. Louis, MO 63178
www.cooperbussmann.com
0209
BU-SB08762
Page 2 of 2
Data Sheet 2019
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